fixes
Merge pull request #18 from smartdec/iss3160

Iss3160
iss3149 alpha
iss3149 alpha2
iss3149 alpha 3
iss3189 beta
add attempts
Merge pull request #21 from smartdec/feature/addAttempts

Feature/add attempts
hot fix iss3555
commit
Merge pull request #23 from smartdec/feature/cert_import

Feature/cert import
fixes InMemoryUploadedFile
new staff
moved staff email to staff dash
Merge pull request #24 from smartdec/restaff

ReStaff
refs #3432
Merge branch 'select/release' of github.com:Man2Life/edx-platform into select/release
new masterclass option: auto register if user passed test
merge